Add support for databases larger than 2GB under Unix. Must be compiled

with -D_FILE_OFFSET_BITS=64 and -D_LARGEFILE_SOURCE in order to work with larger databases. (CVS 778) FossilOrigin-Name: a3f67fe9121ca4655510094fe775b8603a87800e
2025-08-08 14:02:16 +03:00 · 2002-11-05 23:03:02 +00:00
parent 647cb0e159
commit 28be87c7c4
5 changed files with 38 additions and 32 deletions
--- a/16
+++ b/16
@@ -1,5 +1,5 @@
-C Add\sthe\ssqlite_version()\sSQL\sfunction\sas\sa\sbuilt-in.\s(CVS\s777)
-D 2002-11-04T19:32:25
+C Add\ssupport\sfor\sdatabases\slarger\sthan\s2GB\sunder\sUnix.\s\sMust\sbe\scompiled\nwith\s-D_FILE_OFFSET_BITS=64\sand\s-D_LARGEFILE_SOURCE\sin\sorder\sto\swork\swith\nlarger\sdatabases.\s(CVS\s778)
+D 2002-11-05T23:03:03
 F Makefile.in d6c9a85c2a5e696843201d090dcf8bf2f8716f2a
 F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -30,9 +30,9 @@ F src/hash.h cd0433998bc1a3759d244e1637fe5a3c13b53bf8
 F src/insert.c 764300a0bd8074a2174946c0bf8a550bd833397a
 F src/main.c b95d7eeec90f86d05b6a064d07db34b7279e06d4
 F src/md5.c fe4f9c9c6f71dfc26af8da63e4d04489b1430565
-F src/os.c ede7346dffdbab40c6de20d2f325981f3f1168fd
-F src/os.h 3009379b06941e7796a9812d1b6cbc59b26248c8
-F src/pager.c 592e5931fdc65e952a6c3e152bc822580856532a
+F src/os.c 355c66ca67623f9fd652e5c20820b1d9e2210c2a
+F src/os.h c5e4fb5906b506d6e0ad99485a777928b27f6228
+F src/pager.c baf50d8308c61d079086f532c70155cd22c6d07a
 F src/pager.h 6991c9c2dc5e4c7f2df4d4ba47d1c6458f763a32
 F src/parse.y 469c9636ff713e63c00234662209f11668671ae9
 F src/printf.c 5c50fc1da75c8f5bf432b1ad17d91d6653acd167
@@ -149,7 +149,7 @@ F www/speed.tcl a20a792738475b68756ea7a19321600f23d1d803
 F www/sqlite.tcl ae3dcfb077e53833b59d4fcc94d8a12c50a44098
 F www/tclsqlite.tcl 1db15abeb446aad0caf0b95b8b9579720e4ea331
 F www/vdbe.tcl 2013852c27a02a091d39a766bc87cff329f21218
-P 326e0983c34b584a3c4a2300399bff0a8281b9f8
-R 12c8410f7c6ea71ae42e48a4c6d31874
+P 7c8c0e7633dca00bde7bc7c22075f688c034c200
+R bb6cf2c43588a20871dc03d12670be4d
 U drh
-Z f6c61d47bb938fe73872fd88f36201ed
+Z 1af0198577d28fb69a5246d24434f76c
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-7c8c0e7633dca00bde7bc7c22075f688c034c200
+a3f67fe9121ca4655510094fe775b8603a87800e
--- a/src/os.c
+++ b/src/os.c
@@ -22,7 +22,14 @@
 # include <fcntl.h>
 # include <sys/stat.h>
 # include <time.h>
+# ifndef O_LARGEFILE
+#  define O_LARGEFILE 0
+# endif
+# ifndef O_NOFOLLOW
+#  define O_NOFOLLOW 0
+# endif
 #endif
+
 #if OS_WIN
 # include <winbase.h>
 #endif
@@ -232,9 +239,9 @@ int sqliteOsOpenReadWrite(
  int *pReadonly
 ){
 #if OS_UNIX
-  id->fd = open(zFilename, O_RDWR|O_CREAT, 0644);
+  id->fd = open(zFilename, O_RDWR|O_CREAT|O_LARGEFILE, 0644);
  if( id->fd<0 ){
-    id->fd = open(zFilename, O_RDONLY);
+    id->fd = open(zFilename, O_RDONLY|O_LARGEFILE);
    if( id->fd<0 ){
      return SQLITE_CANTOPEN; 
    }
@@ -303,10 +310,7 @@ int sqliteOsOpenExclusive(const char *zFilename, OsFile *id, int delFlag){
  if( access(zFilename, 0)==0 ){
    return SQLITE_CANTOPEN;
  }
-#ifndef O_NOFOLLOW
-# define O_NOFOLLOW 0
-#endif
-  id->fd = open(zFilename, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0600);
+  id->fd = open(zFilename, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW|O_LARGEFILE, 0600);
  if( id->fd<0 ){
    return SQLITE_CANTOPEN;
  }
@@ -359,7 +363,7 @@ int sqliteOsOpenExclusive(const char *zFilename, OsFile *id, int delFlag){
 */
 int sqliteOsOpenReadOnly(const char *zFilename, OsFile *id){
 #if OS_UNIX
-  id->fd = open(zFilename, O_RDONLY);
+  id->fd = open(zFilename, O_RDONLY|O_LARGEFILE);
  if( id->fd<0 ){
    return SQLITE_CANTOPEN;
  }
@@ -536,7 +540,7 @@ int sqliteOsWrite(OsFile *id, const void *pBuf, int amt){
 /*
 ** Move the read/write pointer in a file.
 */
-int sqliteOsSeek(OsFile *id, int offset){
+int sqliteOsSeek(OsFile *id, off_t offset){
  SEEK(offset/1024 + 1);
 #if OS_UNIX
  lseek(id->fd, offset, SEEK_SET);
@@ -573,7 +577,7 @@ int sqliteOsSync(OsFile *id){
 /*
 ** Truncate an open file to a specified size
 */
-int sqliteOsTruncate(OsFile *id, int nByte){
+int sqliteOsTruncate(OsFile *id, off_t nByte){
  SimulateIOError(SQLITE_IOERR);
 #if OS_UNIX
  return ftruncate(id->fd, nByte)==0 ? SQLITE_OK : SQLITE_IOERR;
@@ -588,7 +592,7 @@ int sqliteOsTruncate(OsFile *id, int nByte){
 /*
 ** Determine the current size of a file in bytes
 */
-int sqliteOsFileSize(OsFile *id, int *pSize){
+int sqliteOsFileSize(OsFile *id, off_t *pSize){
 #if OS_UNIX
  struct stat buf;
  SimulateIOError(SQLITE_IOERR);
--- a/src/os.h
+++ b/src/os.h
@@ -60,6 +60,7 @@
    HANDLE h;               /* Handle for accessing the file */
    int locked;             /* 0: unlocked, <0: write lock, >0: read lock */
  };
+  typedef int off_t;
 # define SQLITE_TEMPNAME_SIZE (MAX_PATH+50)
 # define SQLITE_MIN_SLEEP_MS 1
 #endif
@@ -73,10 +74,10 @@ int sqliteOsTempFileName(char*);
 int sqliteOsClose(OsFile*);
 int sqliteOsRead(OsFile*, void*, int amt);
 int sqliteOsWrite(OsFile*, const void*, int amt);
-int sqliteOsSeek(OsFile*, int offset);
+int sqliteOsSeek(OsFile*, off_t offset);
 int sqliteOsSync(OsFile*);
-int sqliteOsTruncate(OsFile*, int size);
-int sqliteOsFileSize(OsFile*, int *pSize);
+int sqliteOsTruncate(OsFile*, off_t size);
+int sqliteOsFileSize(OsFile*, off_t *pSize);
 int sqliteOsReadLock(OsFile*);
 int sqliteOsWriteLock(OsFile*);
 int sqliteOsUnlock(OsFile*);
--- a/src/pager.c
+++ b/src/pager.c
@@ -18,7 +18,7 @@
 ** file simultaneously, or one process from reading the database while
 ** another is writing.
 **
-** @(#) $Id: pager.c,v 1.53 2002/09/05 19:10:33 drh Exp $
+** @(#) $Id: pager.c,v 1.54 2002/11/05 23:03:03 drh Exp $
 */
 #include "sqliteInt.h"
 #include "pager.h"
@@ -106,7 +106,8 @@ struct Pager {
  OsFile cpfd;                /* File descriptor for the checkpoint journal */
  int dbSize;                 /* Number of pages in the file */
  int origDbSize;             /* dbSize before the current change */
-  int ckptSize, ckptJSize;    /* Size of database and journal at ckpt_begin() */
+  int ckptSize;               /* Size of database (in pages) at ckpt_begin() */
+  off_t ckptJSize;            /* Size of journal at ckpt_begin() */
  int nExtra;                 /* Add this many bytes to each in-memory page */
  void (*xDestructor)(void*); /* Call this routine when freeing pages */
  int nPage;                  /* Total number of in-memory pages */
@@ -381,7 +382,7 @@ static int pager_playback_one_page(Pager *pPager, OsFile *jfd){
 ** works, then this routine returns SQLITE_OK.
 */
 static int pager_playback(Pager *pPager){
-  int nRec;                /* Number of Records */
+  off_t nRec;              /* Number of Records */
  int i;                   /* Loop counter */
  Pgno mxPg = 0;           /* Size of the original file in pages */
  unsigned char aMagic[sizeof(aJournalMagic)];
@@ -396,10 +397,10 @@ static int pager_playback(Pager *pPager){
  if( rc!=SQLITE_OK ){
    goto end_playback;
  }
-  nRec = (nRec - (sizeof(aMagic)+sizeof(Pgno))) / sizeof(PageRecord);
-  if( nRec<=0 ){
+  if( nRec <= sizeof(aMagic)+sizeof(Pgno) ){
    goto end_playback;
  }
+  nRec = (nRec - (sizeof(aMagic)+sizeof(Pgno))) / sizeof(PageRecord);

  /* Read the beginning of the journal and truncate the
  ** database file back to its original size.
@@ -421,7 +422,7 @@ static int pager_playback(Pager *pPager){
  if( rc!=SQLITE_OK ){
    goto end_playback;
  }
-  rc = sqliteOsTruncate(&pPager->fd, mxPg*SQLITE_PAGE_SIZE);
+  rc = sqliteOsTruncate(&pPager->fd, SQLITE_PAGE_SIZE*(off_t)mxPg);
  if( rc!=SQLITE_OK ){
    goto end_playback;
  }
@@ -460,13 +461,13 @@ end_playback:
 **         at offset pPager->ckptJSize.
 */
 static int pager_ckpt_playback(Pager *pPager){
-  int nRec;                /* Number of Records */
+  off_t nRec;              /* Number of Records */
  int i;                   /* Loop counter */
  int rc;

  /* Truncate the database back to its original size.
  */
-  rc = sqliteOsTruncate(&pPager->fd, pPager->ckptSize*SQLITE_PAGE_SIZE);
+  rc = sqliteOsTruncate(&pPager->fd, SQLITE_PAGE_SIZE*(off_t)pPager->ckptSize);
  pPager->dbSize = pPager->ckptSize;

  /* Figure out how many records are in the checkpoint journal.
@@ -651,7 +652,7 @@ void sqlitepager_set_destructor(Pager *pPager, void (*xDesc)(void*)){
 ** pPager.
 */
 int sqlitepager_pagecount(Pager *pPager){
-  int n;
+  off_t n;
  assert( pPager!=0 );
  if( pPager->dbSize>=0 ){
    return pPager->dbSize;
@@ -1003,7 +1004,7 @@ int sqlitepager_get(Pager *pPager, Pgno pgno, void **ppPage){
      sqliteOsSeek(&pPager->fd, (pgno-1)*SQLITE_PAGE_SIZE);
      rc = sqliteOsRead(&pPager->fd, PGHDR_TO_DATA(pPg), SQLITE_PAGE_SIZE);
      if( rc!=SQLITE_OK ){
-        int fileSize;
+        off_t fileSize;
        if( sqliteOsFileSize(&pPager->fd,&fileSize)!=SQLITE_OK
               || fileSize>=pgno*SQLITE_PAGE_SIZE ){
          return rc;